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I N-PETERS. PMOTO-IJTHOGRAPHER. WASHINGTON, IJV C.

tetes iafrnt @ffice- JAMES n. 'nownllzor FORT -IIIfAYNIts INDIANA.

.Letters Patent No. 79, 08,`i'ated Ju rnel16, 1868;'antetlated Jane 6, 18.68.

IMPROVEMENT ,IIiI o HUsN.

To ALL .WHoM IT MAI7 CONCERN;

' Be it known that I, JAMES H. ROWE, of Fort Wayne, in the county of Allen,` and State of In(li:ana, have invented certain new and useful Improvements inGhurn-Dasners; and I`do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the l letters of Ireference marked thereon, in which#- Figure l is aplan view. Figure 2 is a side elevation. l The nature of my invention consists in an improved method of constructing chnrirdvashers.. M-y improves mentis in the arrangementiof a sercs'ot` beaters, which are so bevelled'andchamfered thatin passing through the milk to'be agitated, converging and diverging currents are alternatclyformcd inA said milk without havingl the least tendency to throw the milk into a spray, which is at all'itimes injurious to the desired result. Y Y To enable others skilledin the arts toimake and use my invention', I will proceed to describe its construction and operation.

A represents the lower portion ofthe handle of my dasher broken oii.4 B represents three dashers, which areall constructed in the same form 'in every respect, but their diameters, however, decreas'e'inav regular ratio from the lower dasherto the upper-one, aswill be distinctly seen in iig. 1.

4'.lllcse dashersarc placed at equal distances apart, and are rmly secured in their position in such a manner that thebcaters a' a run exactly parallel to each other, while those of the middle series, marked b, -stand at an angleiof fortylve degrees to the former, as will `be readily understood. Eachvof these dashers isiconstructed.

by halving twopicces together, and so chamf'ering their sides and ends olv-(edges in the manner scent in iig. 2, a to leave no surface at right angles Ato the handle of thedasher or that would be liorisontalwhile in use.'

Having thus fully described theconstruction'of my invention, I'will Low give Aits operation, prefaced, hou'- ever, by the statement Athat my object `is to produce butter by means o f friction rather than, excessive agitation,

which is fully accomplished by the peculiarformation onf` the blades. A

We will suppose the dasher to befplalced the bottom of a barrel-churnthat has a suiicient quantity of millc already prepared for operation. AIt isclcar that should the dasher vbc elevated suddenly, the-effect of the upper surface of thettop section would be tobreak or cut the milk .upon the angles ofthe blades marked a, and cause it to slide from its upper surface to the sides thereoiluntil it met orl came in contact with a corresponding current from the next successive blade on eachY sideof V thesaizoeseries.,v It is plain that owing to the sloping of said haides, both towards their sides and-towardtlleir ends', tho direction of the conflicting currents must be inclined downward and outward. The result foi' thisrmovement, then, is to concentrate and unite the two currents, and converge it in its downward course, so as to precipitate ,on to the angle c of the middle dasher below it, where it is again separated, and alike series of currents is formed, as before, which is in like manner-precipitated on to the angle c of the lower series, and. is thence passed off, as beforea A portion of the milk is, however, thrown toward the sides oi' the churn, and strikes it, and is again' reected oft' at -the same angle toward the centre, wher-e it is intercepted by the lower dashcr, as will he readily understood, thus most eifectually securing strong and unbroken currents und countercurrents, together with a great amount of friction-surface upon the dashers themselves, which produces the result of bringing the milk to the desired temperature in an incredibly short space of time, and so thoroughly mixes it that the temperature is alike in all parts, thus securing a full yield ci' butter in an incredibly short space of time.

The construction of this dasher is simple; its operation is complete, it tl'ioroughly washes itself, gathers the butter quickly and perfectly, and can be used in anybarrel-churn.

What I claim as new, and desire to secure by Letters Patent, is;

A churn-dasher, constructed in the manner and for the purpose herein specified and described as an article of manufacture.

JAMES H. ROWE.

Witnesses: Y

H. F. WILLsoN, Guo, EsMoND. 

